Basic Breakdown of Sectors
ZDC is divided into 8 Areas numbered 1 through 8 that make up 46 sectors. They are mainly broken down into Low Altitude, Intermediate, High Altitude and Super High Altitude sectors. There are 18 low sectors, 14 high sectors, 5 super high sector and 4 various other type sectors including 1 High/Low Altitude sector and 3 Intermediate altitude sectors.
Read more about this topic: Washington Air Route Traffic Control Center
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